text: /****************************************************************************
   * boards/arm/stm32/olimexino-stm32/src/stm32_boot.c
   *
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.  The
   * ASF licenses this file to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance with the
   * License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
   * License for the specific language governing permissions and limitations
   * under the License.
   *
   ****************************************************************************/
  
  /****************************************************************************
   * Included Files
   ****************************************************************************/
  
  #include <nuttx/config.h>
  #include <debug.h>
  #include <arch/board/board.h>
  
  #include <nuttx/board.h>
  #include "olimexino-stm32.h"
  
  /****************************************************************************
   * Pre-processor Definitions
   ****************************************************************************/
  
  /****************************************************************************
   * Private Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: vbus_handler
   ****************************************************************************/
  
  #if defined(CONFIG_USBDEV)
  static int vbus_handler(int irq, FAR void *context, FAR void *arg)
  {
    return OK;
  }
  #endif
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: stm32_boardinitialize
   *
   * Description:
   *   All STM32 architectures must provide the following entry point.
   *   This entry point is called early in the initialization -- after all
   *   memory has been configured and mapped but before any devices have been
   *   initialized.
   *
   ****************************************************************************/
  
  void stm32_boardinitialize(void)
  {
  #ifdef CONFIG_ARCH_LEDS
    /* Configure on-board LEDs if LED support has been selected. */
  
    stm32_led_initialize();
  #endif
  
  #ifdef CONFIG_ARCH_BUTTONS
    /* Configure on-board buttons. */
  
    board_button_initialize();
  #endif
  
  #if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2) || \
      defined(CONFIG_STM32_SPI3)
    /* Configure SPI chip selects if 1) SP2 is not disabled, and 2) the weak
     * function stm32_spidev_initialize() has been brought into the link.
     */
  
    if (stm32_spidev_initialize)
      {
        stm32_spidev_initialize();
      }
  #endif
  
  #if defined(CONFIG_USBDEV) && defined(CONFIG_STM32_USB)
    /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not
     * disabled, and 3) the weak function stm32_usbinitialize() has been
     * brought into the build.
     */
  
    stm32_usbinitialize();
  #endif
  }
  
  /****************************************************************************
   * Name: board_late_initialize
   *
   * Description:
   *   If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
   *   initialization call will be performed in the boot-up sequence to a
   *   function called board_late_initialize(). board_late_initialize() will be
   *   called immediately after up_initialize() is called and just before the
   *   initial application is started.  This additional initialization phase
   *   may be used, for example, to initialize board-specific device drivers.
   *
   ****************************************************************************/
  
  #ifdef CONFIG_BOARD_LATE_INITIALIZE
  void board_late_initialize(void)
  {
  #if defined(CONFIG_NSH_LIBRARY) && !defined(CONFIG_BOARDCTL)
    /* Perform NSH initialization here instead of from the NSH.  This
     * alternative NSH initialization is necessary when NSH is ran in user-
     * space but the initialization function must run in kernel space.
     */
  
    board_app_initialize(0);
  #endif
  
  #if defined(CONFIG_USBDEV)
    stm32_usb_set_pwr_callback(vbus_handler);
  #endif
  }
  #endif
  